Embroidering-machine.



M. SCHOENFELDL EMBROIDERING MACHINE.

APPLIOATION IILEI) FEB. 16, 1910.

1,024,912.- Patented 'Apr. 30,1912.

COLUMBIA PLANOGRAPH C0,, WASHINGTON, n. c.

MORRIS SCHOENFELD, 0F RORSCI-IACI-I, SWITZERLAND.

EMBROIDERING-MACHINE.

Specification of Letters Patent.

Patented Apr. 30, 1912.

Application filed February 16, 1910. Serial N 0. 544,199.

To all whom it may concern:

Be it known that I, Monnis SCHOENFELD, a citizen of the United States,and a resident of Rorschach, in the Canton of St. Gall, Switzerland,have invented certain new and useful Improvements inEmbroidering-Machines, of which the following is a specification.

My present invention relates to structural features of an embroideringmachine and the object thereof is to so construct the embroideringmachine that the number of rows of embroidering tools such as needlesand cooperating devices, may be arranged in rows, one set above theother, in greater numbers than heretofore; and to construct the machineso that a clear view of the embroidery surface can be had atall timesnot withstanding the numerous rows of embroidering tools.

Heretofore it has been customary to construct the embroidering machineframe of end standards, connected by four heavy longitudinal beams,which supported the various needle bars and the operating mechanisms;two beams being arranged on the front side of the frame in front of thefabric for certain of the mechanisms, such as the needle bars, tensionroller, take up, etc.; while two beams at the rear of the fabricsupported the other mechanisms, such as the shuttle device. In view ofthe great length of these beams and the great weight and shocks taken upby them they were necessarily large and but two rows of needles could beemployed because a further duplication of the needle bars required acorresponding duplication of the heavy longitudinal beams and this wouldcause the embroidery surface to be so obstructed that the attendantscould not properly see the work during the operation of the machine.Even with but two rows of needle bars and mechanism the obstruction ofthe embroidery surface was objectionable. In the present construction Ihave provided end frame members or supports which are connected bylongitudinal beams but they are so disposed that they do not hide thefabric; while intermediate of the end frame mem hers I have provided aseries of upright frames, disposed at comparatively short intervalswhich are so constructed that, while taking, either directly orindirectly, the

weight of the various embroidering tools and mechanisms, they permit ofthe multiplication of the rows of embroidering devices, and while strongand rigid, offer little obstruction to the view of the embroiderysurface. The attendants may not only view the embroidery surfacedirectly in front of them, but the present construction permits them tolook along the embroidery surface. Furthermore I have provided novelmeans for vertically adjusting the supports which carry the operatingmechanisms, upon the upright frame members.

For simplicity of illustration I have omitted from the drawings thevarious operating mechanisms for operating the embroidering tools assuch mechanisms may be of various constructions, but an example of themechanisms especially adapted for use in conjunction with the structuralfeatures of my present invention may be found in my co-pendingapplications filed Februar 16, 1910, and serially numbered 544194 and544195 which show the mechanisms I prefer to use with the presentinvention.

In the drawings forming a part of this application, Figure l is a frontelevation of one end of an embroidering machine embodying myimprovements, Fig. 2 is a cross section of the embroidering machineframe, Fig. 3 is a detail view showing one form of adjusting device foraltering the relative positions of the tool supporting bars, Fig. 4 is afront elevation and Fig. 5 a sectional view showing a modified form ofadjusting means, Figs. 6 and 7 are similar views of another form ofadjusting device, and Fig. 8 is an elevation of another adjustingdevice. I have shown so much of an embroidering machine as is necessaryto illustrate one embodiment of my invention, it being understood thatthe various mechanisms for forming a complete embroidering machine maybe the same as in the cases to which cross reference has been made, orother mechanisms may be advantageously em ployed if desired.

The frame of the embroidering machine herein shown consists of uprightend frame members 1, one at each end of the frame of the machine. Theseend frame members are adapted to rest upon the floor or other support.Between the end members I have arranged a number of upright framesections of novel construction which serve to take up the weight of thevarious mechanisms and they are preferably arranged at comparativelyshort intervals apart throughout the length of the machine. Theseintermediate frame members are formed of bars or tubes, preferably ofround cross section, and those placed in front of the fabric preferablyare placed opposite those at the rear of the fabric, the two formingwhat I shall term a frame section, and in my present construction theseveral intermediate frame sections are supported upon the floor orother machine support.

In Figs. 1 and 2 I have shown one of the intermediate frame sections, itbeing understood thatthese are duplicated along the machine frame. Infront of the fabric 2 I have placed upright posts 3, which rest upon thefloor and at their tops are connected by longitudinal beams 4, by meansof bolts 53, passing through the flanges 6, on the upright posts and thebeams 1; and these beams preferably extend the entire length of themachine and are secured to the end frames 1 by means of the bolts 7whereby a rigid frame structure is formed. To further strengthen thestructure I have provided spacing members (preferably of tu bular form)8, which are secured between the couplings 9, on the several posts 3,which secure the several posts together near their base, where they willnot interfere with the view of the fabric surface. As before stated,these upright posts are preferably round, to secure proper strength andcompactness and they may be either of solid metal or, as shown in Figs.at and 5 of tubes 10. In either case they are in the nature of posts,adapted to support the various operating parts of the machine at variouspoints throughout the length of the machine, which usually are ofconsiderable length. The fabric 2, is shown diagrammatically in Fig. 2,it being understood that the same is stretched upon a tambour frame inthe usual way, longitudinally of the machine, and the tambour frame isoperated by any known mechanism. At the rear of the fabric I haveprovided a series of upright posts 11, which are connected by thespacers 13, in a similar manner to the posts 3; and at the top they arealso connected by longitudinal beam 14:. The posts 11 are preferablydisposed opposite the posts 3 with suflicient space between them for theembroidering operation. The posts 11 are more especially adapted tosupport the shuttle tracks or guides 12 in which the shuttles and theirdrives are operated, preferably in the manner shown in my co-pendingcase Serial Number 544,195. The needle bars 15 preferably extend thelength of the machine, and carry a large number of needles in the usualway; and these needle bars may be secured directly to the posts 3 underthe broad spirit of my invention, or, preferably, their shafts 17 areadapted to slide in sockets 18 on the longitudinal bars 16. The needlebars are operated to and from the fabric in any desired manner, tostitch the fabric. The bars 16 are in no sense the beams of formerconstructions as they may be made much smaller to permit of the use of agreater number of needle bars, without obstructing the fabric surface. Iprefer to make the bars 16, substantially the length of the machine andto secure them adjustably to the posts, whereby the positions of theneedle bars may be altered to cause the several rows of needles to beoperated at any desired place upon the fabric.

In the form shown in Fig. 3 the bar 16 is supported upon the flange 19of a nut which is threaded upon the post 3, to move up or down on thethreads 20. By inserting a pin in one of the apertures 21 the nut may bescrewed up or down to vertically adjust the bar 16.

In Figs. 4 and 5 the post 10 is hollow and the bolt 22 passes throughthe vertical slot 25 and is provided with an enlarged head 23 inside ofthe post and with a nut 24: outside. By loosening the nut 24: the bar 16may be moved up or down.

In Figs. 6 and 7 the bar 16 rests upon a pin 26, which can be placed inany of several positions by placing it in either of the apertures 27.

In Fig. 8 the post is provided with a rack 28, with which a pinion onthe bar meshes. By turning the handle 30 the bar 16 may be racked up ordown.

In the upper rows of Figs. 1 and 2, the bar 16 has a two part clamp 31which en circles the post 3 and is clamped thereon by means of the bolts32. In the second row of these figures the bar has a collar 33 whichsurrounds the post and a set screw 3a binding on the post serves to holdthe bar 16 in any desired position. In the lowest row the bar 16 has acollar with hinged plates 35 which are clamped together by the bolts 36.

The present construction is simple, and strong, may be made ofcommercial forms of metal and a clear view of the fabric may be had evenwhen many rows of needle bars are used. It also permits of a longermachine, thus increasing the amount of work by enlarging the machinelengthwise while at the same time permitting of its increased efiiciencyby vertical duplication of the embroidering mechanism.

It will be obvious that the supporting members may be employed forsupporting other mechanisms besides the needle bars and shuttles.

I do not wish to be limited to the details herein described as changesmay be made without departing from the spirit and scope of my invention.

Having described my invention what I claim is:

1. An embroidering machine comprising a frame composed of end standardsand a plurality of rigid, stationary, uprightposts arranged at intervalsbetween the end standards, opposite each other in the front and rear ofthe machine, means uniting the standards and posts in a rigid whole,longitudinal superimposed bars and embroidering elements carriedthereon, said bars being supported at intervals throughout their lengthby said upright posts through members engaging around said posts andvertically adjustable thereon.

2. An embroidering machine comprising a frame composed of end standardsand a 'out their length by said upright posts through elements having athreaded engagement with the posts, whereby said bars may be verticallyadjusted on the upright osts.

p Signed at St. Gall in the Canton of St. Gall, Switzerland, this 3rdday of February 1910.

MORRIS SCHOENFELD.

WVitnesses ALBERT PHILLIPS, RANDALL ATKINSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

